What is CVE-2022-22819?

CVE-2022-22819 is a high-severity vulnerability in Nxp Lpc55s66jbd100, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2022-03-23.

How severe is CVE-2022-22819?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Nxp Lpc55s66jbd100

CVE-2022-22819

NXP LPC55S66JBD64, LPC55S66JBD100, LPC55S66JEV98, LPC55S69JBD64, LPC55S69JBD100, and LPC55S69JEV98 microcontrollers (ROM version 1B) have a buffer overflow in parsing SB2 updates before the signature is verified. This can allow an attacker to achieve non-persistent code execution via a crafted unsigned update.

Vulnerability class: Buffer Overflow

Published 2022-03-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

www.nxp.com (Vendor Advisory)
oxide.computer/blog/another-vulnerability-in-the-lpc55s69-rom (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-22819?: CVE-2022-22819 is a high-severity vulnerability in Nxp Lpc55s66jbd100, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2022-03-23.
How severe is CVE-2022-22819?: High severity. CVSS v3 base score is 7.8 out of 10.